Which function represents the sequence –7.25, –6.75, –6.25, –5.75, … ?

Mathematics

2 answers:

adoni [48]2 years ago

6 0

I believe it's -5.25 because it's adding .50 everytime

gavmur [86]2 years ago

6 0

The function is the nth term which = 7.75-0.5n. ... What sequence represents matter that is losing energy? .... what is the number sequence for 4.25 5 5.75?

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Taya2010 [7]

Answer:

The coefficient of correlation is 0.7098.

Step-by-step explanation:

The correlation coefficient is a statistical degree that computes the strength of the linear relationship amid the relative movements of the two variables (i.e. dependent and independent).It ranges from -1 to +1.

The formula to compute the correlation coefficient is:

$r=\frac{n\cdot \sum XY-\sum X\cdot \sum Y}{\sqrt{[n\cdot\sum X^{2}-(\sum X)^{2}][n\cdot\sum Y^{2}-(\sum Y)^{2}]}}$

The required values are computed in the Excel sheet attached below.

Compute the value of r as follows:

$r=\frac{n\cdot \sum XY-\sum X\cdot \sum Y}{\sqrt{[n\cdot\sum X^{2}-(\sum X)^{2}][n\cdot\sum Y^{2}-(\sum Y)^{2}]}}$

$=\frac{(6\cdot 4877.5)-(303.3\cdot 96.3)}{\sqrt{[(6\cdot15367.3)-(303.3)^{2}][(6\cdot1550.7)-(96.3)^{2}]}}\\\\=\frac{57.21}{80.597}\\\\=0.70983\\\\\approx 0.7098$